2018 (vol. 28) - Number 1

*I. Duleba, I. Karcz-Duleba:*

A comparison of methods solving repeatable inverse kinematics for robot manipulators

*A. Niederliński:*

A new approach for modelling uncertainty in expert systems knowledge bases

*T.T. Tuan, L.D. Tufa, M.I.A. Mutalib, N.M. Ramli :*

Optimal operation of a process by integrating dynamic economic optimization and model predictive control formulated with empirical model

*M. Kaleta:*

Network winner determination problem

*A. Kowalewski:*

Extremal problems for parabolic systems with time-varying lags

*T. Rybus, K. Seweryn, J.Z. S±siadek:*

Application of predictive control for manipulator mounted on a satellite

*T. Kaczorek:*

Reachability and observability of positive discrete-time linear systems with integer positive and negative powers of the state Frobenius matrices

*G. Grassi, A. Ouannas, V-T. Pham:*

A general unified approach to chaos synchronization in~continuous-time systems (with or without equilibrium points) as well as in discrete-time systems

*D. Pazderski:*

A robust smooth controller for a unicycle-like robot

ACS Abstract:

**2001 (Volume 11)**

Number 1/2

**Monitoring and control of a class of distributed parameter bioreactors with application of the substrate consumption rate**

J.P.Babary(Centre National de la Recherche Scientifique, France) | J.Czeczot, M.Metzger(Silesian University of Technology, Poland) | M. Nihtilä(University of Kuopio, Finland) |

**keywords:** biotechnology, distributed parameter systems, monitoring, model-based adaptive control, recursive least-squares estimation.

**Optimal control for bilinear systems with delay on control**

A. Eljai(Université de Perpignan, France) | J. Karrakchou(Ecole Mohamadia d'Ingénieurs, Maroc) | M.Rachik, M.Lhous(Faculté des Sciences Ben M'sik, Maroc) |

**keywords:** optimal control, bilinear systems, delayed systems.

**On an NP-hard sorting problem**

K. Giaro(Technical University of Gdańsk, Poland) |

**keywords:** sorting problem, NP-hardness, flexible manufacturing systems.

**Low gain adaptive stabilization of undamped second order systems**

Toshihiro Kobayashi(Kyushu Institute of Technology, Japan) |

**keywords:** low-gain feedback, adaptive stabilization, undamped second order dynamical systems.

**Observability of a generalized linear control system**

Hubert Wysocki(Naval Academy, Poland) |

**keywords:** observability, linear differential systems, observability criteria, Bittner Operational Calculus.

**Very fast algorithm for nonholonomic optimal path planning and replanning, generalities and details**

Leszek Podsźdkowski(Technical University of £ód¼, Poland) |

^{*}searching of a graph built in a configuration space. Very good heuristic approximation of the real cost of the path accelerates path searching significantly. Due to dynamic modifications of the graph, the path replanning procedure is much faster than Brute-Force replanner. The paper presents general assumptions of the method, detailed algorithms of important procedures (especially the path replanning procedure) and a new form of Configuration Space and Open List. The simulation and experimental tests on car-like robot as well as the comparisons of this method to the others are also included.

**keywords:** nonholonomic robots, dynamic path planning, graph searching.

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